Home / 320,956.11-442,933.16-177,716.03

Finding the Fourth Proportional to 320,956.11, 442,933.16 and 177,716.03

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Solution

The fourth proportional to 320,956.11, 442,933.16 and 177,716.03 is: 245,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,956.11 : 442,933.16 = 177,716.03 : x
  2. Step 2: Convert to fraction form
    320,956.11/442,933.16 = 177,716.03/x
  3. Step 3: Cross multiply
    320,956.11x = 442,933.16 × 177,716.03
  4. Step 4: Simplify right side
    320,956.11x = 78,716,319,647.31
  5. Step 5: Solve for x
    x = 78,716,319,647.31/320,956.11
  6. Step 6: Final answer
    x = 245,255.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.